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vichka [17]
3 years ago
7

Use opposite operations to solve 3/4 x=6

Mathematics
1 answer:
borishaifa [10]3 years ago
4 0

Answer:

x=8

Step-by-step explanation:

3x/(4 x 4) =6(4)

cancel the four in the left side

3x=24

then divide 3 on both sides

3x/3=24/3

cancel the 3 on the left

x=8

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Firlakuza [10]

Answer:

Step-by-step explanation:

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3 years ago
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ziro4ka [17]

Answer:

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Step-by-step explanation:

You forgot to square root x^2 = 83.52

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4vir4ik [10]

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1 is 13

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Step-by-step explanation:

8 0
3 years ago
Find all points on the curve that have the given slope.x = 2cost, y= 8sint, slope =-1
tatuchka [14]

Answer:

t_{1} = 0.422\pi \pm \pi\cdot i, \forall \,i \in \mathbb{N}_{O}

t_{2} = 1.422\pi \pm \pi\cdot i, \forall \,i \in \mathbb{N}_{O}

Step-by-step explanation:

In the case of parametric equations, the slope of the curve is equal to:

\frac{dy}{dx} = \frac{\frac{dy}{dt} }{\frac{dx}{dt} }

Where \frac{dx}{dt} and \frac{dy}{dt} are the first derivatives of x and y regarding t. Let be x(t) =2\cdot \cos t and y(t) = 8\cdot \sin t, their first derivatives are found:

\frac{dx}{dt} = -2\cdot \sin t and \frac{dy}{dt} = 8\cdot \cos t

Thus, equation for the slope is:

\frac{dy}{dx} = -\frac{8\cdot \cos t}{2\cdot \sin t}

\frac{dy}{dx} = -\frac{4}{\tan t}

If \frac{dy}{dx} = -1, then:

-1 = -\frac{4}{\tan t}

\tan t = 4

Tangent is positive at 1st quadrant and is a function with a periodicity of \pi, the set of solutions are:

t_{1} = 0.422\pi \pm \pi\cdot i, \forall \,i \in \mathbb{N}_{O}

t_{2} = 1.422\pi \pm \pi\cdot i, \forall \,i \in \mathbb{N}_{O}

7 0
3 years ago
10500 people visited an art gallery in 2002.This was an increase of 25% on 2001.How many visitors were there in 2001?​
Alenkasestr [34]
There were (10500/1.25) = 8400 visitors in 2001.


Explanation:
An increase of 25% means multiplying by 1.25. So, if the visitors from 2001 are multiplied by 1.25, then the result is 10500. Thus, the amount from 2001 was 10500/1.25=8400
7 0
3 years ago
Read 2 more answers
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